Home / 203,117.07-280,298.12-112,471.09

Finding the Fourth Proportional to 203,117.07, 280,298.12 and 112,471.09

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Solution

The fourth proportional to 203,117.07, 280,298.12 and 112,471.09 is: 155,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,117.07 : 280,298.12 = 112,471.09 : x
  2. Step 2: Convert to fraction form
    203,117.07/280,298.12 = 112,471.09/x
  3. Step 3: Cross multiply
    203,117.07x = 280,298.12 × 112,471.09
  4. Step 4: Simplify right side
    203,117.07x = 31,525,433,117.50
  5. Step 5: Solve for x
    x = 31,525,433,117.50/203,117.07
  6. Step 6: Final answer
    x = 155,208.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.